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Ebersole JL, Kirakodu SS, Nguyen LM, Gonzalez OA. Periodontitis-resistant and -susceptible matriline regulation of gingival transcriptome in nonhuman primates. J Periodontal Res 2023; 58:1171-1187. [PMID: 37638662 DOI: 10.1111/jre.13162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/20/2023] [Accepted: 07/07/2023] [Indexed: 08/29/2023]
Abstract
OBJECTIVE This report identified if gingival gene expression transcriptomes demonstrated unique profiles that discriminated periodontitis-susceptible (PDS) and periodontitis-resistant (PDR) animals in health and disease. BACKGROUND Nonhuman primates generally organize their social groups based upon matriline origin. We have used a multi-generational colony of rhesus macaques to identify matrilines presenting with significant differences in periodontitis (e.g., earlier age onset, greater prevalence, and severity). METHODS Animals from 12 to 23 years of age (n = 17; 8 - PDR, 9 - PDS) were entered into a ligature-induced periodontitis trial. Gingival biopsies were taken at baseline and 0.5, 1, 3, and 5 months post-ligation, and microarray analysis was used to quantify gene expression in samples at each time point. RESULTS Over 1000 genes showed significant (p < .01) differences in the PDR versus PDS animals at baseline. The frequency of differences generally decreased during the disease process, and increased with resolution (i.e., 5 months). A nearly 2:1 ratio of elevated gene levels was noted in baseline PDR samples that included up-regulated MMPs, Fc receptors, chemokines, interleukins, and innate immune receptors, and down-regulated genes particularly related to epithelial biology. Most dramatically, there was a skewed differential expression of adaptive immune response genes in the PDR and epithelial cell structure/function genes in PDS samples. CONCLUSIONS The results demonstrate substantive differences in gingival tissue response capacity/programming in PDR and PDS samples that may contribute to the differences in clinical outcomes related to the heritability of disease risk through matrilines.
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Affiliation(s)
- J L Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, Nevada, USA
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - S S Kirakodu
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - L M Nguyen
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, Nevada, USA
| | - O A Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
- Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
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Ebersole JL, Kirakodu S, Gonzalez O. Differential oral microbiome in nonhuman primates from periodontitis-susceptible and periodontitis-resistant matrilines. Mol Oral Microbiol 2023; 38:93-114. [PMID: 35837817 DOI: 10.1111/omi.12377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 11/28/2022]
Abstract
Rhesus monkeys (n = 36) exhibiting a healthy periodontium at baseline were used to induce progressing periodontitis through ligature placement around premolar/molar teeth. Bacterial samples were collected at baseline, 0.5, 1, and 3 months of disease and at 5 months for disease resolution. The animals were distributed into two groups (18/group): 3-7 years (young) and 12-23 years (adult) and stratified based upon matriline susceptibility to periodontitis (PDS, susceptible; PDR, resistant). A total of 444 operational taxonomic units (OTUs) with 100 microbes representing a core microbiome present in ≥75% of the samples were identified. Only 48% of the major phylotypes overlapped in the PDS and PDR samples. Different OTU abundance patterns were seen in young animals from the PDS and PDR matrilines, with qualitative similarities during disease and the relative abundance of phylotypes becoming less diverse. In adults, 23 OTUs were increased during disease in PDS samples and 24 in PDR samples; however, only five were common between these groups. Greater diversity of OTU relative abundance at baseline was observed with adult compared to young oral samples from both the PDS and PDR groups. With disease initiation (2 weeks), less diversity of relative abundance and some distinctive increases in specific OTUs were noted. By 1 month, there was considerable qualitative homogeneity in the major OTUs in both groups; however, by 3 months, there was an exacerbation of both qualitative and quantitative differences in the dominant OTUs between the PDS and PDR samples. These results support that some differences in disease expression related to matriline (familial) periodontitis risk may be explained by microbiome features.
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Affiliation(s)
- Jeffrey L Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, Nevada, USA
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Sreenatha Kirakodu
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Octovio Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
- Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
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Loka AM, Ponnaiyan D, Parthasarathy H, Tadepalli A, Victor DJ. Association of CASP3 rs4647602 Gene Polymorphism with Periodontitis in South Indians of Tamil Ethnicity. Genet Test Mol Biomarkers 2022; 26:391-397. [PMID: 35976099 DOI: 10.1089/gtmb.2022.0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: Caspase-3 (CASP3) activation is central to apoptosis and is involved in periodontal disease pathogenesis. CASP3 gene polymorphism in a population may influence the periodontitis disease severity. In this study, we aimed to identify the association of CASP3 (rs4647602) gene polymorphism with periodontitis and to correlate clinical parameters based on genotype and allele distribution in periodontally diseased and healthy South Indian subjects of Tamil ethnicity. Materials and Methods: Allele-specific polymerase chain reaction genotyping were performed to identify CASP3 rs4647602 gene polymorphism in 145 periodontally healthy subjects and 145 periodontitis subjects. The association between gene polymorphism frequencies and the risk of periodontitis were analyzed by Pearson chi-square test, Mann-Whitney U test, t test, logistic regression, and assessed by odds ratio (OR) and 95% confidence interval (95% CI). Results: The statistical test results demonstrated a significant difference in genotype distribution between the two groups (p < 0.001) and the variant GG genotype was associated with a significantly increased risk for periodontitis (OR = 3.55, 95% CI = 1.89-6.68, p < 0.001). Furthermore, all clinical parameters were highly significant to the genotypes in periodontitis subjects (p < 0.05). Conclusion: The present study suggests that the rs4647602 GG genotype of CASP3 is associated with the periodontitis risk in a South Indians of Tamil ethnicity. Clinical Trial Registration Number: (CTRI/2021/03/032412).
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Affiliation(s)
- Arya Mitra Loka
- Department of Periodontics, SRM Dental College, Chennai, India
| | - Deepa Ponnaiyan
- Department of Periodontics, SRM Dental College, Chennai, India
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Sarkar P, Muthuraj TS, Bandyopadhyay P, Ghosh P. Matrix metalloproteinase-9-1562 C/T promoter gene polymorphism in chronic periodontitis: A cross-sectional observational study. J Indian Soc Periodontol 2022; 26:348-352. [PMID: 35959301 PMCID: PMC9362816 DOI: 10.4103/jisp.jisp_80_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/20/2021] [Accepted: 06/24/2021] [Indexed: 12/03/2022] Open
Abstract
Background: Matrix metalloproteinases (MMPs) are a major group of enzymes, released in inflamed periodontal tissues in large quantities, resulting in connective tissue matrix breakdown. One of the most predominant MMPs is MMP-9. Association between chronic periodontitis (CP) and MMP-9 gene polymorphism (GP) in some ethnic populations has been already established. The aim of the current study was to assess the association of single-nucleotide polymorphism in the promoter region of MMP-9 gene with CP in Kolkata population, if any. Materials and Methods: Forty eligible individuals were recruited for the study and grouped as A and B: Group A (twenty periodontally healthy individuals) and Group B (twenty CP patients). Venous blood samples collected from all the forty individuals were used to isolate the genomic DNA. GP for MMP-9 gene was detected using polymerase chain reaction and sequencing method. The data obtained were then analyzed statistically. Results: A significantly different genotypic and allelic variation was observed in the control and test groups, with C/T genotype and T allele present in only CP group. Conclusion: Within the limitations of this study, we can conclude that there was no significant association between patients with periodontitis and MMP-9-1562 C/T promoter GP.
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Affiliation(s)
- Puja Sarkar
- Dental Department, North Bengal Medical College and Hospital, Siliguri, West Bengal, India
| | - Thamil Selvan Muthuraj
- Department of Periodontics, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - Prasanta Bandyopadhyay
- Department of Periodontics, Burdwan Dental College and Hospital, Bardhaman, West Bengal, India
| | - Papita Ghosh
- Department of Periodontics, Dr. R Ahmed Dental College and Hospital, West Bengal, India
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Chang X, Zhou F, Bu L, Wang N, Deng J, Wang S. Semaphorin 3A attenuates the hypoxia suppression of osteogenesis in periodontal ligament stem cells. J Periodontal Res 2022; 57:425-433. [PMID: 35037251 DOI: 10.1111/jre.12973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/25/2021] [Accepted: 01/06/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE AND BACKGROUND The occurrence and development of periodontitis are closely related to hypoxia of the periodontal microenvironment. Periodontal ligament stem cells (PDLSCs) are considered to have potential to regenerate periodontal tissues. Semaphorin 3A (Sema3A) plays an essential role in promoting osteogenesis. However, the effect of Sema3A on osteogenesis of PDLSCs under hypoxia remains unclear. The aim of this study was to investigate the effect of Sema3A on osteogenesis of PDLSCs under hypoxia. METHODS Isolated PDLSCs were identified using flow cytometry. Adipogenic differentiation potential was identified by oil red O staining. Osteogenesis was measured using Alizarin Red S staining and ALP staining. Intracellular hypoxia was induced using cobalt chloride (CoCl2 ). The expression level of hypoxia-inducible factor-1α (HIF-1α) was detected via ELISA. Expression of osteogenic markers and Sema3A was analyzed using western blot and real-time PCR. RESULTS The proliferation and osteogenesis of PDLSCs were markedly inhibited with increased concentrations of CoCl2 . Under the treatment with a low concentration of CoCl2 , expression of related osteogenic markers and Sema3A decreased in a time-dependent manner. ARS and ALP staining results also showed that osteogenic calcification decreased under hypoxia. Apigenin, an inhibitor of HIF-1α, effectively up-regulated expression of Sema3A and osteogenic markers with CoCl2 treatment. Moreover, exogenous Sema3A significantly increased the expression of osteogenesis-related markers and mineralization of PDLSCs according to ALP and ARS staining with CoCl2 treatment. CONCLUSIONS Hypoxia markedly inhibited osteogenesis of PDLSCs. Sema3A explicitly attenuated the hypoxia suppression of osteogenesis in PDLSCs.
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Affiliation(s)
- Xiaochi Chang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China
| | - Fengyi Zhou
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Lingxue Bu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Nan Wang
- School of Stomatology of Qingdao University, Qingdao, China.,Department of Stomatology, Hospital of the PLA Navy, Qingdao, China
| | - Jing Deng
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China
| | - Shuai Wang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China
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Jajoo NS, Shelke AU, Bajaj RS, Devani V. Correction to: Periodontitis and Rheumatoid Arthritis: The Common Thread. Clin Rev Bone Miner Metab 2021. [DOI: 10.1007/s12018-021-09280-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kapila YL. Oral health's inextricable connection to systemic health: Special populations bring to bear multimodal relationships and factors connecting periodontal disease to systemic diseases and conditions. Periodontol 2000 2021; 87:11-16. [PMID: 34463994 PMCID: PMC8457130 DOI: 10.1111/prd.12398] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The landscape in dentistry is changing as emerging studies continue to reveal that periodontal health impacts systemic health, and vice versa. Population studies, clinical studies, and in vitro animal studies underscore the critical importance of oral health to systemic health. These inextricable relationships come to the forefront as oral diseases, such as periodontal disease, take root. Special populations bring to bear the multimodal relationships between oral and systemic health. Specifically, periodontal disease has been associated with diabetes, metabolic syndrome, obesity, eating disorders, liver disease, cardiovascular disease, Alzheimer disease, rheumatoid arthritis, adverse pregnancy outcomes, and cancer. Although bidirectional relationships are recognized, the potential for multiple comorbidities, relationships, and connections (multimodal relationships) also exists. Proposed mechanisms that mediate this connection between oral and systemic health include predisposing and precipitating factors, such as genetic factors (gene polymorphisms), environmental factors (stress, habits-such as smoking and high-fat diets/consumption of highly processed foods), medications, microbial dysbiosis and bacteremias/viremias/microbemias, and an altered host immune response. Thus, in a susceptible host, these predisposing and precipitating factors trigger the onset of periodontal disease and systemic disease/conditions. Further, high-throughput sequencing technologies are shedding light on the dark matter that comprises the oral microbiome. This has resulted in better characterization of the oral microbial dysbiosis, including putative bacterial periodontopathogens and shifts in oral virome composition during disease. Multiple laboratory and clinical studies have illustrated that both eukaryotic and prokaryotic viruses within subgingival plaque and periodontal tissues affect periodontal inflammation, putative periodontopathogens, and the host immune response. Although the association between herpesviruses and periodontitis and the degree to which these viruses directly aggravate periodontal tissue damage remain unclear, the benefits to periodontal health found from prolonged administration of antivirals in immunocompromised or immunodeficient individuals demonstrates that specific populations are possibly more susceptible to viral periodontopathogens. Thus, it may be important to further examine the implications of viral pathogen involvement in periodontitis and perhaps it is time to embrace the viral dark matter within the periodontal environment to fully comprehend the pathogenesis and systemic implications of periodontitis. Emerging data from the coronavirus disease 2019 pandemic further underscores the inextricable connection between oral and systemic health, with high levels of the severe acute respiratory syndrome coronavirus 2 angiotensin-converting enzyme 2 receptor noted on oral tissues (tongue) and an allostatic load or overload paradigm of chronic stress likely contributing to rapid breakdown of oral/dental, periodontal, and peri-implant tissues. These associations exist within a framework of viremias/bacteremias/microbemias, systemic inflammation, and/or disturbances of the immune system in a susceptible host. A thorough review of systemic and oral diseases and conditions and their mechanistic, predisposing, and precipitating factors are paramount to better addressing the oral and systemic health and needs of our patients.
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Affiliation(s)
- Yvonne L. Kapila
- Department of Orofacial SciencesSchool of DentistryUniversity of California San FranciscoSan FranciscoCaliforniaUSA
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8
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Cho YD, Kim WJ, Ryoo HM, Kim HG, Kim KH, Ku Y, Seol YJ. Current advances of epigenetics in periodontology from ENCODE project: a review and future perspectives. Clin Epigenetics 2021; 13:92. [PMID: 33902683 PMCID: PMC8077755 DOI: 10.1186/s13148-021-01074-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 04/12/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The Encyclopedia of DNA Elements (ENCODE) project has advanced our knowledge of the functional elements in the genome and epigenome. The aim of this article was to provide the comprehension about current research trends from ENCODE project and establish the link between epigenetics and periodontal diseases based on epigenome studies and seek the future direction. MAIN BODY Global epigenome research projects have emphasized the importance of epigenetic research for understanding human health and disease, and current international consortia show an improved interest in the importance of oral health with systemic health. The epigenetic studies in dental field have been mainly conducted in periodontology and have focused on DNA methylation analysis. Advances in sequencing technology have broadened the target for epigenetic studies from specific genes to genome-wide analyses. CONCLUSIONS In line with global research trends, further extended and advanced epigenetic studies would provide crucial information for the realization of comprehensive dental medicine and expand the scope of ongoing large-scale research projects.
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Affiliation(s)
- Young-Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Woo-Jin Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hong-Gee Kim
- Biomedical Knowledge Engineering Laboratory, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kyoung-Hwa Kim
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Young Ku
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea
| | - Yang-Jo Seol
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul, 03080, Korea.
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Bagde H, Banakar S, Waghmare A, Bagde A, Chaturvedi SS, Patil SR. Assessment of the Relationship Between Matrix Metalloproteinase-9 Promoter Gene Polymorphism and Chronic Periodontitis. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2021. [DOI: 10.1590/pboci.2021.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Hiroj Bagde
- New Horizon Dental College and Research Institute, India
| | | | | | - Ashwini Bagde
- New Horizon Dental College and Research Institute, India
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11
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Li Y, Sun C, Feng G, He Y, Li J, Song J. Low-intensity pulsed ultrasound activates autophagy in periodontal ligament cells in the presence or absence of lipopolysaccharide. Arch Oral Biol 2020; 117:104769. [PMID: 32599516 DOI: 10.1016/j.archoralbio.2020.104769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 05/10/2020] [Accepted: 05/12/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVE This study aims to determine if low-intensity pulsed ultrasound (LIPUS) activates autophagy in human periodontal ligament cells (PDLCs) irrespective of lipopolysaccharide. DESIGN Six groups were designed: control, LIPUS, lipopolysaccharide, LIPUS + lipopolysaccharide, LIPUS+3-Methyladenine, LIPUS + lipopolysaccharide+3-Methyl- adenine. LIPUS pretreated PDLCs for 2 h and lipopolysaccharide treated for different times. Real-time PCR and Western-blot were performed to evaluate mRNA and protein expression levels of autophagic genes Beclin-1 and LC3 respectively. A transmission electronic microscope was used to observe the autophagosome. ELISA was used to test interleukin-6 expression. RESULTS Compared with the non-treatment, LIPUS pretreatment increased mRNA expression levels of LC3 (P < 0.05) and Beclin-1 (P < 0.05) at 4 h and 8 h, and enhanced the protein expression levels of LC3-Ⅱ at 8 h (P<0.05) and Beclin-1 at 4 h, 8 h and 16 h(P<0.05). After LIPUS pretreatment and lipopolysaccharide treatment for 8 h, LC3-Ⅱ and Beclin-1 protein expression levels were elevated (P < 0.05) compared with the control. Following further treatment by 3-Methyladenine, Beclin-1 protein expression was decreased (P < 0.05) compared with the LIPUS plus lipopolysaccharide group, but LC3-Ⅱ protein expression was not. Autophagosomes were not found in the LIPUS+3-Methyladenine and LIPUS+lipopolysaccharide+3-Methyladenine groups. After LIPUS pretreatment and lipopolysaccharide treatment for 36 h, intreleukin-6 expression was decreased (P<0.05) compared with the lipopolysaccharide group. However, after addition of 3-Methyladenine, intreleukin-6 expression was elevated (P < 0.05) compared with the LIPUS +lipopolysaccharide group. CONCLUSIONS LIPUS can promote autophagy in PDLCs irrespective of lipopolysaccharide. Autophagy might be involved in LIPUS anti-inflammatory mechanism in PDLCS.
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Affiliation(s)
- Yao Li
- College of Stomatology, Chongqing Medical University, PR China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engisneering of Higher Education, PR China
| | - Chengjun Sun
- Stomatological Hospital, Southern Medical University, PR China
| | - Ge Feng
- College of Stomatology, Chongqing Medical University, PR China
| | - Yao He
- College of Stomatology, Chongqing Medical University, PR China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engisneering of Higher Education, PR China
| | - Jie Li
- College of Stomatology, Chongqing Medical University, PR China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engisneering of Higher Education, PR China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, PR China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engisneering of Higher Education, PR China.
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12
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Torres AFC, Antunes LS, Oliveira NFD, Küchler EC, Gomes CC, Antunes LAA. Genetic Polymorphism and Expression of Matrix Metalloproteinases and Tissue Inhibitors of Metalloproteinases in Periapical Lesions: Systematic Review. J Endod 2020; 46:3-11.e1. [DOI: 10.1016/j.joen.2019.10.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/20/2019] [Accepted: 10/13/2019] [Indexed: 01/10/2023]
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13
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Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification and case definition. J Periodontol 2019; 89 Suppl 1:S159-S172. [PMID: 29926952 DOI: 10.1002/jper.18-0006] [Citation(s) in RCA: 1128] [Impact Index Per Article: 225.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/11/2018] [Accepted: 02/11/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Authors were assigned the task to develop case definitions for periodontitis in the context of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. The aim of this manuscript is to review evidence and rationale for a revision of the current classification, to provide a framework for case definition that fully implicates state-of-the-art knowledge and can be adapted as new evidence emerges, and to suggest a case definition system that can be implemented in clinical practice, research and epidemiologic surveillance. METHODS Evidence gathered in four commissioned reviews was analyzed and interpreted with special emphasis to changes with regards to the understanding available prior to the 1999 classification. Authors analyzed case definition systems employed for a variety of chronic diseases and identified key criteria for a classification/case definition of periodontitis. RESULTS The manuscript discusses the merits of a periodontitis case definition system based on Staging and Grading and proposes a case definition framework. Stage I to IV of periodontitis is defined based on severity (primarily periodontal breakdown with reference to root length and periodontitis-associated tooth loss), complexity of management (pocket depth, infrabony defects, furcation involvement, tooth hypermobility, masticatory dysfunction) and additionally described as extent (localized or generalized). Grade of periodontitis is estimated with direct or indirect evidence of progression rate in three categories: slow, moderate and rapid progression (Grade A-C). Risk factor analysis is used as grade modifier. CONCLUSIONS The paper describes a simple matrix based on stage and grade to appropriately define periodontitis in an individual patient. The proposed case definition extends beyond description based on severity to include characterization of biological features of the disease and represents a first step towards adoption of precision medicine concepts to the management of periodontitis. It also provides the necessary framework for introduction of biomarkers in diagnosis and prognosis.
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Affiliation(s)
- Maurizio S Tonetti
- Periodontology, Faculty of Dentistry, University of Hong Kong, Hong Kong, SAR China
| | - Henry Greenwell
- Graduate Periodontics, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Kenneth S Kornman
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
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J.H. Martinez C, Villafuerte KR, Luchiari HR, O. Cruz J, Sales M, Palioto DB, Messora MR, Souza SL, Taba M, Ramos ES, Novaes AB. Effect of smoking on the DNA methylation pattern of the SOCS1 promoter in epithelial cells from the saliva of patients with chronic periodontitis. J Periodontol 2019; 90:1279-1286. [DOI: 10.1002/jper.18-0692] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/24/2019] [Accepted: 02/24/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Cristhiam J.H. Martinez
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Kelly R.V. Villafuerte
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Heloise R. Luchiari
- Laboratory of Epigenetics and ReproductionDepartment of GeneticsRibeirão Preto Medical SchoolUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Juliana O. Cruz
- Laboratory of Epigenetics and ReproductionDepartment of GeneticsRibeirão Preto Medical SchoolUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Mariana Sales
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Daniela B. Palioto
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Michel R. Messora
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Sergio L.S. Souza
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Mario Taba
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Ester S. Ramos
- Laboratory of Epigenetics and ReproductionDepartment of GeneticsRibeirão Preto Medical SchoolUniversity of São Paulo Ribeirão Preto SP Brazil
| | - Arthur B. Novaes
- Department of Oral & Maxillofacial Surgery, and PeriodontologySchool of Dentistry of Ribeirão PretoUniversity of São Paulo Ribeirão Preto SP Brazil
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15
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Miyamoto T, Kumagai T, Khan S, Reddy MS. Application of 2017 New Classification of Periodontal Diseases and Conditions to Localized Aggressive Periodontitis: Case Series. Clin Adv Periodontics 2019; 9:185-191. [DOI: 10.1002/cap.10068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 02/03/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Takanari Miyamoto
- Department of PeriodonticsCreighton University School of Dentistry Omaha NE USA
| | | | - Shakeel Khan
- Department of PeriodonticsCreighton University School of Dentistry Omaha NE USA
| | - Michael S. Reddy
- Dean's officeUniversity of California San Francisco School of Dentistry San Francisco CA USA
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16
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Prasanna JS, Aishwarya MD, Karunakar P, Rekharani K, Vijayalakshmi B, Jharna P. Evaluation of collagenase-3 matrix metalloproteinase-13 gene-associated polymorphisms 11A/12A and -77A/G and its associated alleles with and without periodontitis. J Indian Soc Periodontol 2019; 22:474-479. [PMID: 30631224 PMCID: PMC6305098 DOI: 10.4103/jisp.jisp_333_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Context: Connective tissue devastation in periodontitis and other chronic inflammatory diseases is a major concern. There are several inflammatory mediators associated with this process among which matrix metalloproteinases (MMPs) play a predominant role. Collagen degradation is primarily mediated by the collagenases. MMP-13 is familiar as collagenase-3, which has the aptitude to humiliate fibrillar collagen. Aims: This study aims to evaluate MMP-13 promoter polymorphism, 11A/12A, and −77A/G and associated alleles in patients with and without chronic periodontitis (CP). Settings and Design: This was an observational case–control study. Materials and Methods: Of the total 100 patients, 50 with CP (test group) and 50 without CP (Control group), blood was collected for deoxyribonucleic acid isolation. The 11A/12A and −77A/G polymorphisms of the MMP-13 gene were picked out by polymerase chain reaction (PCR)- single-strand conformation polymorphism analysis method and PCR-restriction fragment length polymorphism by BseNI restriction enzyme, respectively. Statistical Analysis Used: Association between MMP-13 genotype (GTs) (11A/12A, 11A/11A, 12A/12A) and (AA, AG, GG) was assessed by Chi-square and Student's t-test for intergroup comparison. Results: 11A/12A GT was seen in 24% and 20%, 11A/11A 64% and 72%, 12A/12A 12% and 8% in test and control groups, respectively. However, the association was not statistically significant. −77A/G polymorphism associated GT s AA was 56% and 62%, AG 24% and 28%, GG 20% and 10% in test and controls, respectively. An association of GG was statistically significant. Conclusion: The present study results indicated that MMP-13 −77A/G gene polymorphisms, GG GT may be predicted intensive ability for CP. On the other hand, there was no significant association between MMP-13 11A/12A gene polymorphisms with CP.
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Affiliation(s)
- Jammula Surya Prasanna
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Mutyap Divya Aishwarya
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Parupalli Karunakar
- Department of Conservative and Endodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Koduganti Rekharani
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Bodiga Vijayalakshmi
- Department of Genetics, Institute of Genetics and Hospital for Genetic Diseases, Hyderabad, Telangana, India
| | - Puppala Jharna
- Department of Genetics, Institute of Genetics and Hospital for Genetic Diseases, Hyderabad, Telangana, India
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17
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Ebersole JL, Orraca L, Kensler TB, Gonzalez-Martinez J, Maldonado E, Gonzalez OA. Periodontal disease susceptible matrilines in the Cayo Santiago Macaca mulatta macaques. J Periodontal Res 2018; 54:134-142. [PMID: 30277577 DOI: 10.1111/jre.12610] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/19/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE AND BACKGROUND The expression of periodontitis, including age of onset, extent, and severity is considered to represent an interaction of the individual's oral microbiome and host response to the microbial challenge that is modified by both genetics and environmental factors. The aim of this study was to determine the distribution of periodontitis in a population of nonhuman primates, to document features of familial distribution that could reflect heritability and transmission of microbes with enhanced virulence. MATERIAL AND METHODS This report presents our findings from evaluation of periodontal disease bone defects in skulls from 569 animals (5-31 years of age) derived from the skeletons of the rhesus monkeys (Macaca mulatta) of Cayo Santiago derived from eight matrilines over 6-9 generations. The distance from the base of alveolar bone to the cemento-enamel junction on 1st /2nd premolars and 1st /2nd molars from all four quadrants was evaluated as a measure of periodontal disease. Additionally, we documented the presence of periodontitis in 79 living descendants within these matrilines. RESULTS The results demonstrated an increased extent and severity of periodontitis with aging across all matrilines. Extensive heterogeneity in disease expression was observed among the animals and this was linked to specific periodontitis susceptible matrilines. Moreover, we identified some matrilines in which the members appeared to show some resistance to more severe disease, even with aging. CONCLUSION Linking these disease variations to multigenerational matriarchal family units supported familial susceptibility of periodontitis. This familial disease relationship was reinforced by the distribution of naturally-occurring periodontitis in the living descendants.
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Affiliation(s)
- Jeffrey L Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, Nevada
| | - Luis Orraca
- School of Dental Medicine, University of Puerto Rico, San Juan, Puerto Rico
| | - Terry B Kensler
- Laboratory of Primate Morphology, University of Puerto Rico, San Juan, Puerto Rico
| | | | - Elisabeth Maldonado
- Laboratory of Primate Morphology, University of Puerto Rico, San Juan, Puerto Rico
| | - Octavio A Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky.,Division of Periodontology, College of Dentistry, University of Kentucky, Lexington, Kentucky
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18
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Nazemisalman B, Vahabi S, Sabouri E, Hosseinpour S, Doaju S. Association of vitamin D binding protein and vitamin D receptor gene polymorphisms in Iranian patients with chronic periodontitis. Odontology 2018; 107:46-53. [DOI: 10.1007/s10266-018-0383-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/18/2018] [Indexed: 12/27/2022]
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19
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Hiyari S, Green E, Pan C, Lari S, Davar M, Davis R, Camargo PM, Tetradis S, Lusis AJ, Pirih FQ. Genomewide Association Study Identifies Cxcl Family Members as Partial Mediators of LPS-Induced Periodontitis. J Bone Miner Res 2018; 33:1450-1463. [PMID: 29637625 PMCID: PMC8434897 DOI: 10.1002/jbmr.3440] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/21/2022]
Abstract
Periodontitis (PD) is characterized by bacterial infection and inflammation of tooth-supporting structures and can lead to tooth loss. PD affects ∼47% of the US population over age 30 years and has a heritability of about 50%. Although the host immunoinflammatory response and genetic background play a role, little is known of the underlying genetic factors. We examined natural genetic variation in lipopolysaccharide (LPS)-induced PD across a panel of inbred mouse strains, the hybrid mouse diversity panel (HMDP). We observed a strain-dependent sixfold difference in LPS-induced bone loss across the HMDP with a heritability of 53%. We performed a genomewide association study (GWAS) using FAST-LMM, which corrects for population structure, and identified loci significantly associated with PD. We examined candidate genes at a locus on chromosome 5, which suggested a relationship between LPS-induced bone loss and, together with expression data, identified Cxcl family members as associated with PD. We observed an increase in Cxcl10 protein, as well as immune cells and pro-inflammatory cytokines in C57BL/6J (high bone loss strain) but not in A/J (low bone loss strain) after LPS injections. Genetic deletion of CXCR3 (Cxcl9 and10 receptor) demonstrated a ∼50% reduction in bone loss and reduced osteoclasts after LPS injections. Furthermore, WT mice treated with AMG-487 (a CXCR3 antagonist) showed a ∼45% reduction in bone loss and decreased osteoclasts after LPS injections. We conclude that CXCR3 is a strong candidate for modulating the host response in individuals susceptible to PD. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Sarah Hiyari
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Elissa Green
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Calvin Pan
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Soma Lari
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Mina Davar
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Richard Davis
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Paulo M Camargo
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sotirios Tetradis
- Section of Oral Radiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Aldons J Lusis
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Flavia Q Pirih
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
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20
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Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification and case definition. J Clin Periodontol 2018; 45 Suppl 20:S149-S161. [DOI: 10.1111/jcpe.12945] [Citation(s) in RCA: 460] [Impact Index Per Article: 76.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/11/2018] [Accepted: 02/11/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Maurizio S. Tonetti
- Periodontology; Faculty of Dentistry; University of Hong Kong; Hong Kong SAR China
| | - Henry Greenwell
- Graduate Periodontics; School of Dentistry; University of Louisville; Louisville KY, USA
| | - Kenneth S. Kornman
- Department of Periodontics and Oral Medicine; University of Michigan School of Dentistry; Ann Arbor MI, USA
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21
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Interleukin-10 polymorphisms affect the key periodontal pathogens in Chinese periodontitis patients. Sci Rep 2018; 8:9068. [PMID: 29899423 PMCID: PMC5997982 DOI: 10.1038/s41598-018-26236-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/03/2018] [Indexed: 12/13/2022] Open
Abstract
Interleukin-10 (IL-10) polymorphisms have been shown to affect IL-10 production. This study investigated the influences of IL-10 polymorphisms on the susceptibility to chronic periodontitis (CP) and aggressive periodontitis (AP), and their possible role in the quantity of subgingival bacteria Aggregatibacter Actinomycetemcomitans and Porphyromonas gingivalis. 92 CP patients, 83 AP patients and 91 periodontal healthy controls were recruited. Serum IL-10 concentration was analyzed by enzyme-linked immunosorbent assay (ELISA). Gene polymorphisms were determined by multiplex SNaPshot technique. Bacteria were quantified by real-time polymerase chain reaction with TaqMan MGB probes. Taking into account age, gender and periodontal status, IL-10-592 AA, -819 TT and ATA/ATA genotype occurred more frequently in patients with CP than in healthy controls. In CP cases, higher quantity of subgingival A. actinomycetemcomitans and lower serum IL-10 levels could be detected in homozygous ATA/ATA carriers. These findings indicate that variants in IL-10 promoter gene were not only associated with predisposition to chronic periodontitis but also affected the subgingival number of A. Actinomycetemcomitans in a Chinese Han population.
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22
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Lee CH, Chen YW, Tu YK, Wu YC, Chang PC. The potential of salivary biomarkers for predicting the sensitivity and monitoring the response to nonsurgical periodontal therapy: A preliminary assessment. J Periodontal Res 2018; 53:545-554. [DOI: 10.1111/jre.12544] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2018] [Indexed: 12/25/2022]
Affiliation(s)
- C.-H. Lee
- Department of Dentistry; National Taiwan University Hospital; Taipei Taiwan
| | - Y.-W. Chen
- Department of Dentistry; National Taiwan University Hospital; Taipei Taiwan
- Graduate Institute of Clinical Dentistry; School of Dentistry; National Taiwan University; Taipei Taiwan
| | - Y.-K. Tu
- Institute of Epidemiology and Preventive Medicine; College of Public Health; National Taiwan University; Taipei Taiwan
| | - Y.-C. Wu
- Institute of Epidemiology and Preventive Medicine; College of Public Health; National Taiwan University; Taipei Taiwan
| | - P.-C. Chang
- Department of Dentistry; National Taiwan University Hospital; Taipei Taiwan
- Graduate Institute of Clinical Dentistry; School of Dentistry; National Taiwan University; Taipei Taiwan
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23
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Bhansali RS, Yeltiwar RK, Bhat K. Evaluation of peripheral neutrophil functions in aggressive periodontitis patients and their family members in Indian population: An assessment of neutrophil chemotaxis, phagocytosis, and microbicidal activity. J Indian Soc Periodontol 2018; 21:449-455. [PMID: 29551862 PMCID: PMC5846240 DOI: 10.4103/jisp.jisp_107_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Association of neutrophil function abnormalities with localized aggressive periodontitis (LAP) has been reported in Indian population. There are no published studies on the familial aggregation of aggressive periodontitis (AP) and neutrophil function abnormalities associated with it in Indian population. The present study aimed to assess neutrophil chemotaxis, phagocytosis, and microbicidal activity in AP patients and their family members of Indian origin, who may or may not be suffering from AP. Materials and Methods Eighteen families with a total of 51 individuals (18 probands, 33 family members) were included. Neutrophil chemotaxis was evaluated against an alkali-soluble casein solution using Wilkinson's method. Phagocytosis and microbicidal activity assay were performed using Candida albicans as an indicator organism. Statistical Analysis Used The magnitude of association between the presence of defective neutrophil function and LAP or GAP was calculated using odds ratio and relative risk. Total incidence of AP, and in particular, LAP in the families attributable to the presence of defective neutrophil function was calculated by attributable risk. Results The association between depressed neutrophil chemotaxis and presence of AP and LAP or GAP in all the family members (n = 51) was found to be significant (P < 0.05) while that for phagocytic and microbicidal activity were observed to be nonsignificant. Conclusion The results of the present study suggest high incidence of AP (LAP and GAP) within families was associated with depressed neutrophil chemotaxis. High prevalence of depressed neutrophil chemotaxis in the family members (61%) of LAP probands exhibiting depressed chemotaxis suggests that the observed abnormalities in neutrophil functions may also be inherited by the family members.
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Affiliation(s)
- Rahul Suresh Bhansali
- Department of Dentistry, Dr. Ulhas Patil Medical College, Jalgaon, Maharashtra, India
| | | | - Kishore Bhat
- Department of Microbiology, Maratha Mandal's Dental College and Research Centre, Belgaum, Karnataka, India
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24
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Gonçalves PF, Harris TH, Elmariah T, Aukhil I, Wallace MR, Shaddox LM. Genetic polymorphisms and periodontal disease in populations of African descent: A review. J Periodontal Res 2017; 53:164-173. [PMID: 29105764 DOI: 10.1111/jre.12505] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2017] [Indexed: 01/22/2023]
Abstract
Aggressive periodontitis is a rare but rapidly progressing form of periodontal disease that usually affects otherwise systemically healthy individuals, at a young age. It usually affects first molars and incisors, which are usually lost if treatment is not properly and early rendered. Although of low prevalence, it affects individuals of African descent at a higher prevalence, and usually multiple members within the same family. Several studies have been performed in the attempt to evaluate specific single nucleotide polymorphisms (SNPs) that could be associated with this disease. To the best of our knowledge, the present article provides the first review of the literature focusing on studies that evaluated SNPs in patients of African descent with aggressive periodontitis. Several SNPs have been evaluated in different genes according to their role in the pathogenesis of the disease, with positive and negative associations (such as IL1, FCGR3B, FPR1, LTF, CYBA, GLT6D1, TLR4) with both the localized and generalized forms of aggressive periodontitis. Given the complexity of periodontitis, the difficulty in gathering large cohorts diagnosed with this rare form of disease, and the fact that candidate gene studies may only determine part of the genetic risk of a disease, the search for specific SNPs associated with aggressive periodontitis seems to be a long one, most likely to result in the combination of multiple SNPs, in multiple genes.
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Affiliation(s)
- P F Gonçalves
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA.,Department of Dentistry, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, Brazil
| | - T H Harris
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - T Elmariah
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - I Aukhil
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - M R Wallace
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, FL, USA.,University of Florida Genetics Institute, University of Florida, Gainesville, FL, USA
| | - L M Shaddox
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
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25
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Twin Studies in Brazil: Projects and Plans / Twin Research: Infant Twins' Viewing of Social Scenes; Religiosity and Substance Abuse; Down Syndrome Among Twins; Twin Case of Chronic Periodontitis / In the News: The Twin 'Property Brothers', Twins With Cerebral Palsy; Twins Affected With the Zika Virus; Twin Writers Derek and Roddy; Twins on Sports Teams; Local Quads. Twin Res Hum Genet 2017; 20:481-488. [PMID: 28975876 DOI: 10.1017/thg.2017.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Twin research in Brazil twin has expanded enormously in recent years, engaging the interests and efforts of many investigators, students and twins. Descriptions and brief summaries of this work and talks given by investigators at local conferences are presented, based on my four-city lecture tour. This is followed by summaries of twin research on infants' viewing of social scenes, religiosity and substance abuse, Down syndrome, and chronic periodontitis. This article concludes with twin-related news and information of general interest, including identical twin property designers, twins with cerebral palsy, twins affected with the Zika virus, a pair of twin writers, twins in sports, and a set of quadruplets from my childhood neighborhood in Riverdale, New York.
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26
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Salles AG, Antunes LAA, Carvalho PA, Küchler EC, Antunes LS. Association Between Apical Periodontitis and TNF-α -308 G>A Gene Polymorphism: A Systematic Review and Meta-Analysis. Braz Dent J 2017; 28:535-542. [DOI: 10.1590/0103-6440201701491] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/29/2017] [Indexed: 01/17/2023] Open
Abstract
Abstract Currently, investigations have focused on the identification of Single Nucleotide Polymorphisms (SNP) involved in host response and its ability to generate an immunity deficiency. The aim of this study was to perform a systematic review (SR) and meta-analysis to evaluate the association between TNF-α -308 G>A polymorphism and apical periodontitis (AP) phenotypes. A broad search for studies was conducted. The following databases were used: PubMed, Scopus, Web of Science, and VHL (Medline, SciELO, Ibecs, and Lilacs). The MeSH terms “Periapical Periodontitis,” “Periapical Abscess,” “Polymorphism, Genetic,” and “Polymorphism, Single Nucleotide” were used. MeSH synonyms, related terms, and free terms were included. Clinical investigations of individuals with different AP phenotypes in permanent teeth were selected. After application of the eligibility criteria, selected studies were qualified by assessing their methodological quality. A fixed effect model was used for the meta-analysis. The initial search identified 71 references. After excluding duplicate abstracts, 33 were selected. From these, two were eligible for quality assessment and were classified as being of moderate evidence. The included studies did not demonstrate association between AP and TNF-α -308 G>A SNP. However, the meta-analysis demonstrated an association between the genotype distribution and AP phenotype (OR= 0.49; confidence interval= 0.25, 0.96; p=0.04). The role of TNF-α -308 G>A SNP in AP phenotypes is debatable. Further studies are needed to confirm and understand the underlying mechanisms of the identified association.
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Ishaan D, Parthasarathy H, Ponnaiyan D, Tadepalli A. The CD14 rs2569190 TT Genotype is Associated with Chronic Periodontitis. Genet Test Mol Biomarkers 2017; 21:560-564. [PMID: 28829191 DOI: 10.1089/gtmb.2017.0029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
AIM The genetic variation in the CD14 rs2569190 promoter region contributes to the susceptibility of developing periodontitis. Since, CD14 gene polymorphism studies among various ethnic populations have produced conflicting results, the present study was designed to unearth the association between the CD14 rs2569190 gene polymorphism and generalized chronic periodontitis (GCP) in a South Indian population of Tamil ethnicity. METHODS Polymorphisms in the CD14 rs2569190 promoter region were analyzed in 96 subjects who were periodontally healthy and 96 patients with GCP. DNA extracted from peripheral venous blood was genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis. One-way analysis of variance, Chi-square testing, and logistic regression analysis were used to test association between GCP and the CD14 rs2569190 single nucleotide polymorphism (SNP). RESULTS The distribution of the CD14 rs2569190 genotypes and allele frequencies showed significant differences between the test and control groups. Prevalence of the polymorphic TT genotype and T allele of the CD14 rs2569190 were significantly increased in GCP patients when compared with healthy controls. CONCLUSION The results of the present study suggest that the T allele and the TT genotype of the rs2569190 SNP in the promoter region of the CD14 gene are associated with GCP in a South Indian population of Tamil ethnicity.
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Affiliation(s)
- Dilshi Ishaan
- Department of Periodontics, SRM Dental College , Ramapuram, Chennai, Tamil Nadu, India
| | | | - Deepa Ponnaiyan
- Department of Periodontics, SRM Dental College , Ramapuram, Chennai, Tamil Nadu, India
| | - Anupama Tadepalli
- Department of Periodontics, SRM Dental College , Ramapuram, Chennai, Tamil Nadu, India
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28
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Ebersole JL, Dawson D, Emecen-Huja P, Nagarajan R, Howard K, Grady ME, Thompson K, Peyyala R, Al-Attar A, Lethbridge K, Kirakodu S, Gonzalez OA. The periodontal war: microbes and immunity. Periodontol 2000 2017; 75:52-115. [DOI: 10.1111/prd.12222] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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29
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Van der Velden U. What exactly distinguishes aggressive from chronic periodontitis: is it mainly a difference in the degree of bacterial invasiveness? Periodontol 2000 2017; 75:24-44. [DOI: 10.1111/prd.12202] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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30
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Shusterman A, Munz M, Richter G, Jepsen S, Lieb W, Krone B, Hoffman P, Laudes M, Wellmann J, Berger K, Kocher T, Offenbacher S, Divaris K, Franke A, Schreiber S, Dommisch H, Weiss E, Schaefer A, Houri-Haddad Y, Iraqi F. The PF4/PPBP/CXCL5 Gene Cluster Is Associated with Periodontitis. J Dent Res 2017; 96:945-952. [PMID: 28467728 PMCID: PMC5502958 DOI: 10.1177/0022034517706311] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Periodontitis is a common dysbiotic inflammatory disease with an estimated heritability of 50%. Due to the limited sample size of available periodontitis cohorts and the underlying trait heterogeneity, genome-wide association studies (GWAS) of chronic periodontitis (CP) have been unsuccessful in discovering susceptibility factors. A strategy that combines agnostic GWAS with a well-powered candidate-gene approach has the potential to discover novel loci. We combined RNA-seq data from gingival tissues with quantitative trait loci (QTLs) that were identified in a F2-cross of mice resistant and susceptible to infection with oral bacterial pathogens. Four genes, which were located within the mapped QTLs, showed differential expression. The chromosomal regions across the human orthologous were interrogated for putative periodontitis-associated variants using existing GWAS data from a German case-control sample of aggressive periodontitis (AgP; 651 cases, 4,001 controls), the most severe and early onset form of periodontitis. Two haplotype blocks, one upstream to the coding region of UGT2A1 (rs146712414, P = 9.1 × 10-5; odds ratio [OR], 1.34; 95% confidence interval [CI], 1.16-1.56) and one downstream of the genes PF4/PPBP/CXCL5 (rs1595009, P = 1.3 × 10-4; OR, 1.32; 95% CI, 1.15-1.52), were associated with AgP. The association of rs1595009 was validated in an independent cohort of CP of European Americans (1,961 cases and 1,864 controls; P = 0.03; OR, 1.45; 95% CI, 1.01-1.29). This association was further replicated in another sample of 399 German CP cases (disease onset <60 y of age) and 1,633 controls ( P = 0.03; OR, 1.75; 95% CI, 1.06-2.90). The combined estimates of association from all samples were P = 2.9 × 10-5 (OR, 1.2; 95% CI, 1.1-1.3). This study shows the strength of combining QTL mapping and RNA-Seq data from a mouse model with association studies in human case-control samples to identify genetic risk variants of periodontitis.
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Affiliation(s)
- A. Shusterman
- Department of Prosthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - M. Munz
- Department of Periodontology and Synoptic Medicine, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, Berlin, Germany
- Institute for Integrative and Experimental Genomics, University Medical Center Schleswig-Holstein–Campus Lübeck, Lübeck, Germany
| | - G. Richter
- Department of Periodontology and Synoptic Medicine, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, Berlin, Germany
| | - S. Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany
| | - W. Lieb
- Institute of Epidemiology, Biobank popgen, Christian-Albrechts-University, Kiel, Germany
| | - B. Krone
- Institute of Medical Informatics, Biometry and Epidemiology, University Clinic Essen, Essen, Germany
| | - P. Hoffman
- Institute of Human Genetics, University of Bonn, Bonn, Germany
- Germany und Human Genomics Research Group, Department of Biomedicine, University Hospital of Basel, Basel, Switzerland
| | - M. Laudes
- Clinic of Internal Medicine, University Clinic Schleswig-Holstein, Kiel, Germany
| | - J. Wellmann
- Institute of Epidemiology and Social Medicine, University of Münster, Münster, Germany
| | - K. Berger
- Institute of Epidemiology and Social Medicine, University of Münster, Münster, Germany
| | - T. Kocher
- Unit of Periodontology, Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Greifswald, Germany
| | - S. Offenbacher
- University of North Carolina–Chapel Hill, School of Dentistry, Department of Periodontology, Chapel Hill, NC, USA
| | - K. Divaris
- University of North Carolina–Chapel Hill, School of Dentistry, Department of Pediatric Dentistry, Chapel Hill, NC, USA
- University of North Carolina–Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology, Chapel Hill, NC, USA
| | - A. Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - S. Schreiber
- Clinic of Internal Medicine, University Clinic Schleswig-Holstein, Kiel, Germany
- Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - H. Dommisch
- Department of Periodontology and Synoptic Medicine, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, Berlin, Germany
| | - E. Weiss
- Maurice and Gabriella Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A.S. Schaefer
- Department of Periodontology and Synoptic Medicine, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, Berlin, Germany
| | - Y. Houri-Haddad
- Department of Prosthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - F.A. Iraqi
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Laine ML, Morré SA, Murillo LS, van Winkelhoff AJ, Peña AS. CD14 and TLR4 Gene Polymorphisms in Adult Periodontitis. J Dent Res 2016; 84:1042-6. [PMID: 16246938 DOI: 10.1177/154405910508401114] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Bacterial deposits, smoking, and host genetic factors play a major role in an individual’s predisposition to periodontitis. Bacterial components are recognized by CD14 and toll-like receptor 4 (TLR4), resulting in a NF-κB-based inflammatory response. We hypothesized that functional CD14 and TLR4 polymorphisms contribute to periodontitis susceptibility. We aimed to investigate the occurrence of CD14-260C>T, TLR4 299Asp>Gly, and 399Thr>Ile gene polymorphisms in adult periodontititis. DNA was collected from 100 patients with severe periodontitis and from 99 periodontally healthy controls. The gene polymorphisms were determined by the PCR technique. The presence of the periodontal pathogens Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans, and whether the subjects smoked, was included in the analyses. The CD14-260T/T genotype was found in 34.0% of periodontitis patients and in 20.2% of controls. Logistic regression analysis adjusted for gender, age, smoking, and prevalence of P. gingivalis and A. actinomycetemcomitans showed an association between the CD14-260T/T genotype and periodontitis (P = 0.004, OR 3.0, 95% CI 1.4–6.9). We conclude that the CD14-260T/T genotype contributes to the susceptibility to severe periodontitis in Dutch Caucasians.
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Affiliation(s)
- M L Laine
- Department of Periodontology, Section of Oral Microbiology, Academic Centre for Dentistry Amsterdam, Van der Boechorsstraat 7, 1081 BT Amsterdam, The Netherlands.
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Nguyen Vo TN, Hao J, Chou J, Oshima M, Aoki K, Kuroda S, Kaboosaya B, Kasugai S. Ligature induced peri-implantitis: tissue destruction and inflammatory progression in a murine model. Clin Oral Implants Res 2016; 28:129-136. [DOI: 10.1111/clr.12770] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 01/27/2023]
Affiliation(s)
- Trang N. Nguyen Vo
- Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Jia Hao
- Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Josh Chou
- School of Life Sciences; Faculty of Science; University of Technology Sydney; Sydney NSW Australia
| | - Masamitsu Oshima
- Department of Oral Rehabilitation and Regenerative Medicine; Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - Kazuhiro Aoki
- Department of Bio-Matrix (Pharmacology); Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Shinji Kuroda
- Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Boosana Kaboosaya
- Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Shohei Kasugai
- Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
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Sima C, Cheng Q, Rautava J, Levesque C, Sherman P, Glogauer M. Identification of quantitative trait loci influencing inflammation-mediated alveolar bone loss: insights into polygenic inheritance of host-biofilm disequilibria in periodontitis. J Periodontal Res 2015; 51:237-49. [PMID: 26126603 DOI: 10.1111/jre.12303] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND OBJECTIVE The relative contribution of genetic and environmental factors to the onset and progression of periodontitis is inconclusive. Despite the high prevalence, phenotypic heterogeneity and significant local and systemic implications of this disease, early detection and individualized therapy are problematic. Using a murine model of periodontitis in a panel of 17 recombinant inbred mice, the current study addressed the heritability of, and oral dysbiosis associated with, inflammation-mediated alveolar bone loss (iABL), the hallmark of periodontitis. MATERIAL AND METHODS Quantitative trait locus (QTL) genomics and quantitative PCR for over 99% of known murine oral microbiota were used. RESULTS It was found that iABL is a polygenic trait with 32.7% heritability. One suggestive QTL, nicknamed inflammation-mediated alveolar bone loss locus (iABLL), was identified on chromosome 2. Eleven genes involved in innate immune responses and bone metabolism, particularly related to macrophage and osteoblast function, namely Etl4, Pdss1, Cobll1, 9330158F14Rik, Xirp2, Stk39, Mettl5, Metapl1, Itga6, Pdk1 and Sp3, were found in the iABLL using cis expression QTL and nonsynonymous single nucleotide polymorphism analyses. Specific oral microbiome shifts in saliva and tongue mucosa are associated with disease in this model. CONCLUSION Our results indicate that complex host-biofilm interactions generate pathogenic states that extend beyond subgingival biofilms and periodontal tissues. Although no temporal relationship between the onset of iABL and microbiome changes were established, our findings suggest that host factors may be responsible for pathogenic shifts in subgingival biofilms when persistent and undisturbed.
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Affiliation(s)
- C Sima
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA, USA.,Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA.,Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Q Cheng
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - J Rautava
- Department of Oral Pathology and Oral Radiology, Institute of Dentistry, University of Turku, Turku, Finland.,Cell Biology Program, Research Institute, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - C Levesque
- Department of Oral Microbiology, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - P Sherman
- Cell Biology Program, Research Institute, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - M Glogauer
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
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Sima C, Glogauer M. Macrophage subsets and osteoimmunology: tuning of the immunological recognition and effector systems that maintain alveolar bone. Periodontol 2000 2015; 63:80-101. [PMID: 23931056 DOI: 10.1111/prd.12032] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2012] [Indexed: 01/01/2023]
Abstract
Chronic and aggressive periodontal diseases are characterized by the failure to resolve local inflammation against periodontopathogenic bacteria in the subgingival biofilm. Alveolar bone resorption is associated with altered innate and adaptive immune responses to periodontal pathogens. Macrophage-derived cytokines, chemokines and growth factors, present in both destructive and reparative phases of periodontitis, are elevated in numerous animal and human studies. Macrophage polarization to either a predominantly pro-inflammatory or anti-inflammatory phenotype may be a critical target for monitoring disease activity, modulating immune responses to subgingival biofilms in patients at risk and reducing alveolar bone loss.
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Hiyari S, Atti E, Camargo PM, Eskin E, Lusis AJ, Tetradis S, Pirih FQ. Heritability of periodontal bone loss in mice. J Periodontal Res 2015; 50:730-6. [PMID: 25581386 DOI: 10.1111/jre.12258] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2014] [Indexed: 01/07/2023]
Abstract
BACKGROUND Periodontitis is an inflammatory disease of the periodontal tissues that compromises tooth support and can lead to tooth loss. Although bacterial biofilm is central in disease pathogenesis, the host response plays an important role in the progression and severity of periodontitis. Indeed, clinical genetic studies indicate that periodontitis is 50% heritable. In this study, we hypothesized that lipopolysaccharide (LPS) injections lead to a strain-dependent periodontal bone loss pattern. MATERIAL AND METHODS We utilized five inbred mouse strains that derive the recombinant strains of the hybrid mouse diversity panel. Mice received Porphyromonas gingivalis-LPS injections for 6 wk. RESULTS AND CONCLUSION Micro-computed tomography analysis demonstrated a statistically significant strain-dependent bone loss. The most susceptible strain, C57BL/6J, had a fivefold higher LPS-induced bone loss compared to the most resistant strain, A/J. More importantly, periodontal bone loss revealed 49% heritability, which closely mimics periodontitis heritability for patients. To evaluate further the functional differences that underlie periodontal bone loss, osteoclast numbers of C57BL/6J and A/J mice were measured in vivo and in vitro. In vitro analysis of osteoclastogenic potential showed a higher number of osteoclasts in C57BL/6J compared to A/J mice. In vivo LPS injections statistically significantly increased osteoclast numbers in both groups. Importantly, the number of osteoclasts was higher in C57BL/6J vs. A/J mice. These data support a significant role of the genetic framework in LPS-induced periodontal bone loss and the feasibility of utilizing the hybrid mouse diversity panel to determine the genetic factors that affect periodontal bone loss. Expanding these studies will contribute in predicting patients genetically predisposed to periodontitis and in identifying the biological basis of disease susceptibility.
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Affiliation(s)
- S Hiyari
- School of Dentistry, Section of Periodontics, University of California, Los Angeles, CA, USA
| | - E Atti
- School of Dentistry, Section of Oral and Maxillofacial Radiology, University of California, Los Angeles, CA, USA
| | - P M Camargo
- School of Dentistry, Section of Periodontics, University of California, Los Angeles, CA, USA
| | - E Eskin
- Department of Computer Sciences, University of California, Los Angeles, CA, USA
| | - A J Lusis
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - S Tetradis
- School of Dentistry, Section of Oral and Maxillofacial Radiology, University of California, Los Angeles, CA, USA
| | - F Q Pirih
- School of Dentistry, Section of Periodontics, University of California, Los Angeles, CA, USA
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The effect of IL-4 gene polymorphisms on cytokine production in patients with chronic periodontitis and in healthy controls. Mediators Inflamm 2014; 2014:185757. [PMID: 25530681 PMCID: PMC4229963 DOI: 10.1155/2014/185757] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 11/17/2022] Open
Abstract
Chronic periodontitis (CP) is an inflammatory disease of the teeth-supporting tissues in which genetic predisposition, dental plaque bacteria, and immune mechanisms all play important roles. The aim of this study was to evaluate the occurrence of IL-4 gene polymorphisms in chronic periodontitis and to investigate the association between polymorphisms and cytokines production after bacterial stimulation. Sixty-two subjects (47 CP patients and 15 healthy controls) with detected two polymorphisms in the IL-4 gene (-590C/T and intron 3 VNTR) were examined. Production of cytokines (IL-1α, IL-1β, IL-4, IL-5, IL-6, IL-10, IL-17, TNFα, INFγ, and VEGF) was studied after in vitro stimulation of isolated peripheral blood by mitogens (Pokeweed mitogen, Concanavalin A), dental plaque bacteria (Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Porphyromonas gingivalis, and Prevotella intermedia), and Heat Shock Protein (HSP) 70 by the Luminex multiplex cytokine analysis system. The results were correlated with IL-4 genotypes in patients with CP and healthy controls. The mononuclear cells isolated from peripheral blood of CP patients with selected IL-4 polymorphisms significantly altered the production of IFNγ, IL-10, IL-1β, IL-1α, TNFα, and IL-6 after stimulation by HSP 70 or selected bacteria (from P < 0.001 to P < 0.05). IL-4 gene polymorphisms may influence the function of mononuclear cells to produce not only interleukin-4 but also other cytokines, especially in patients with CP.
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Feng P, Wang X, Casado PL, Küchler EC, Deeley K, Noel J, Kimm H, Kim JH, Haas AN, Quinelato V, Bonato LL, Granjeiro JM, Susin C, Vieira AR. Genome wide association scan for chronic periodontitis implicates novel locus. BMC Oral Health 2014; 14:84. [PMID: 25008200 PMCID: PMC4096424 DOI: 10.1186/1472-6831-14-84] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 07/01/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is evidence for a genetic contribution to chronic periodontitis. In this study, we conducted a genome wide association study among 866 participants of the University of Pittsburgh Dental Registry and DNA Repository, whose periodontal diagnosis ranged from healthy (N = 767) to severe chronic periodontitis (N = 99). METHODS Genotypingi of over half-million single nucleotide polymorphisms was determined. Analyses were done twice, first in the complete dataset of all ethnicities, and second including only samples defined as self-reported Whites. From the top 100 results, twenty single nucleotide polymorphisms had consistent results in both analyses (borderline p-values ranging from 1E-05 to 1E-6) and were selected to be tested in two independent datasets derived from 1,460 individuals from Porto Alegre, and 359 from Rio de Janeiro, Brazil. Meta-analyses of the Single nucleotide polymorphisms showing a trend for association in the independent dataset were performed. RESULTS The rs1477403 marker located on 16q22.3 showed suggestive association in the discovery phase and in the Porto Alegre dataset (p = 0.05). The meta-analysis suggested the less common allele decreases the risk of chronic periodontitis. CONCLUSIONS Our data offer a clear hypothesis to be independently tested regarding the contribution of the 16q22.3 locus to chronic periodontitis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Alexandre R Vieira
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15261, USA.
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Risk factors of periodontal disease: review of the literature. Int J Dent 2014; 2014:182513. [PMID: 24963294 PMCID: PMC4055151 DOI: 10.1155/2014/182513] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 04/07/2014] [Indexed: 01/15/2023] Open
Abstract
Objectives. This paper aims to review the evidence on the potential roles of modifiable and nonmodifiable risk factors associated with periodontal disease. Data. Original articles that reported on the risk factors for periodontal disease were included. Sources. MEDLINE (1980 to Jan 2014), PubMed (using medical subject headings), and Google Scholar were searched using the following terms in different combinations: "periodontal disease," "periodontitis," "risk factors," and "causal." This was supplemented by hand-searching in peer-reviewed journals and cross-referenced with the articles accessed. Conclusions. It is important to understand the etiological factors and the pathogenesis of periodontal disease to recognize and appreciate the associated risk factors. As periodontal disease is multifactorial, effective disease management requires a clear understanding of all the associated risk factors.
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Chen D, Zhang TL, Wang LM. The association of CSF-1 gene polymorphism with chronic periodontitis in the Han Chinese population. J Periodontol 2014; 85:e304-12. [PMID: 24592910 DOI: 10.1902/jop.2014.130688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Chronic periodontitis (CP) is a multifactorial complex periodontal disease involving immune response, inflammation, alveolar bone resorption, and attachment loss. Colony stimulating factor-1 (CSF-1) controls the production, differentiation, and function of macrophages and plays a vital role in the innate immune response to the external microbial infections, suggesting the potential role of CSF-1 in the pathogenesis of periodontitis. The objective of this study is to determine the association of single nucleotide polymorphisms (SNPs) rs333967, rs2297706, and rs1058885 with CP in the Han Chinese population. METHODS Genomic DNA was isolated from buccal epithelial cells obtained from unrelated Chinese participants (440 patients with CP and 324 controls). The SNPs were genotyped by a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry method. RESULTS Three previously identified SNPs were genotyped in Han Chinese with Shanghai origin, but none of them was statistically significantly associated with CP. However, a T-C-G haplotype in male participants showed an observed P value of 4.52(E-08), with an odds ratio of 0.092. CONCLUSION None of the individual SNPs among rs333967, rs2297706, and rs1058885 in CSF-1 was found statistically significantly associated with CP in the Han Chinese population with Shanghai origin, whereas a haplotype T-C-G showed an observed statistically significant association with decreased risk of CP susceptibility in males.
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Affiliation(s)
- Dong Chen
- Department of Periodontology, Shanghai Stomatological Disease Center, Shanghai, China
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40
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Zhan Y, Zhang R, Lv H, Song X, Xu X, Chai L, Lv W, Shang Z, Jiang Y, Zhang R. Prioritization of candidate genes for periodontitis using multiple computational tools. J Periodontol 2014; 85:1059-69. [PMID: 24476546 DOI: 10.1902/jop.2014.130523] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Both genetic and environmental factors contribute to the development of periodontitis. Genetic studies identified a variety of candidate genes for periodontitis. The aim of the present study is to identify the most promising candidate genes for periodontitis using an integrative gene ranking method. METHODS Seed genes that were confirmed to be associated with periodontitis were identified using text mining. Three types of candidate genes were then extracted from different resources (expression profiles, genome-wide association studies). Combining the seed genes, four freely available bioinformatics tools (ToppGene, DIR, Endeavour, and GPEC) were integrated for prioritization of candidate genes. Candidate genes that identified with at least three programs and ranked in the top 20 by each program were considered the most promising. RESULTS Prioritization analysis resulted in 21 promising genes involved or potentially involved in periodontitis. Among them, IL18 (interleukin 18), CD44 (CD44 molecule), CXCL1 (chemokine [CXC motif] ligand 1), IL6ST (interleukin 6 signal transducer), MMP3 (matrix metallopeptidase 3), MMP7, CCR1 (chemokine [C-C motif] receptor 1), MMP13, and TLR9 (Toll-like receptor 9) had been associated with periodontitis. However, the roles of other genes, such as CSF3 (colony stimulating factor 3 receptor), CD40, TNFSF14 (tumor necrosis factor receptor superfamily, member 14), IFNB1 (interferon-β1), TIRAP (toll-interleukin 1 receptor domain containing adaptor protein), IL2RA (interleukin 2 receptor α), ETS1 (v-ets avian erythroblastosis virus E26 oncogene homolog 1), GADD45B (growth arrest and DNA-damage-inducible 45 β), BIRC3 (baculoviral IAP repeat containing 3), VAV1 (vav 1 guanine nucleotide exchange factor), COL5A1 (collagen, type V, α1), and C3 (complement component 3), have not been investigated thoroughly in the process of periodontitis. These genes are mainly involved in bacterial infection, immune response, and inflammatory reaction, suggesting that further characterizing their roles in periodontitis will be important. CONCLUSIONS A combination of computational tools will be useful in mining candidate genes for periodontitis. These theoretical results provide new clues for experimental biologists to plan targeted experiments.
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Affiliation(s)
- Yuanbo Zhan
- Department of Periodontology and Oral Mucosa, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Haplotype analysis of interleukin-8 gene polymorphisms in chronic and aggressive periodontitis. Mediators Inflamm 2013; 2013:342351. [PMID: 24368875 PMCID: PMC3866791 DOI: 10.1155/2013/342351] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 10/09/2013] [Accepted: 11/04/2013] [Indexed: 12/20/2022] Open
Abstract
Objectives. Periodontitis is an inflammatory disease characterized by connective tissue loss and alveolar bone destruction. Interleukin-8 (IL8) is important in the regulation of the immune response. The aim of this study was to analyze four polymorphisms in the IL8 gene in relation to chronic (CP) and aggressive (AgP) periodontitis. Methods. A total of 492 unrelated subjects were included in this case-control association study. Genomic DNA of 278 patients with CP, 58 patients with AgP, and 156 controls were genotyped, using the 5′ nuclease TaqMan assay, for IL8 (rs4073, rs2227307, rs2227306, and rs2227532) gene polymorphisms. Subgingival bacterial colonization was investigated by the DNA-microarray detection kit in a subgroup of subjects (N = 247). Results. Allele and genotype frequencies of all investigated IL8 polymorphisms were not significantly different between the subjects with CP and/or AgP and controls (P > 0.05). Nevertheless, the A(−251)/T(+396)/T(+781) and T(−251)/G(+396)/C(+781) haplotypes were significantly less frequent in patients with CP (2.0% versus 5.1%, P < 0.02, OR = 0.34, 95% CI: 0.15–0.78, resp., 2.0% versus 4.5%, P < 0.05, OR = 0.41, 95% CI: 0.18–0.97) than in controls. Conclusions. Although none of the investigated SNPs in the IL8 gene was individually associated with periodontitis, some haplotypes can be protective against CP in the Czech population.
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Abstract
Although the IL-1α molecule has long been recognized, information about its distinct role in various diseases is limited, since most clinical studies have focused on the role of IL-1β. Despite triggering the same IL-1 receptor as does IL-1β, there is, however, a distinct role for IL-1α in some inflammatory diseases. IL-1α is a unique cytokine since it is constitutively present intracellularly in nearly all resting non-hematopoietic cells in health as well as being up-regulated during hypoxia. During cell necrosis, IL-1α functions as an alarm molecule and thus plays a critical role early in inflammation. Following its release from damage tissue cells, IL-1α mediates neutrophil recruitment to the site of injury, inducing IL-1β, other cytokines and chemokines from surrounding resident cells. Another unique attribute of IL-1α is its nuclear localization sequence present in the N-terminal half of the precursor termed the propiece. The IL-1α propiece translocates into the nucleus and participates in the regulation of transcription. Therefore, IL-1α, like IL-1 family members IL-33 and IL-37, is a 'dual-function' cytokine binding to chromatin as well as to its cell surface receptor. Some cancer cells can express membrane IL-1α, which can increase immunogenicity of tumor cells and serve in anti-tumor immune surveillance and tumor regression. However, in the tumor microenvironment, precursor IL-1α released from dying tumor cells is inflammatory and, similar to IL-1β, increases tumor invasiveness and angiogenesis.
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Affiliation(s)
- Peleg Rider
- Faculty of Health Sciences, Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Yaron Carmi
- School of Medicine, Department of Pathology, Stanford University, Palo Alto, CA, USA
| | - Elena Voronov
- The Shraga Segal Department of Microbiology, Immunology and Genetics and The Cancer Research Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ron N Apte
- The Shraga Segal Department of Microbiology, Immunology and Genetics and The Cancer Research Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Laine M, Moustakis V, Koumakis L, Potamias G, Loos B. Modeling Susceptibility to Periodontitis. J Dent Res 2012; 92:45-50. [DOI: 10.1177/0022034512465435] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Chronic inflammatory diseases like periodontitis have a complex pathogenesis and a multifactorial etiology, involving complex interactions between multiple genetic loci and infectious agents. We aimed to investigate the influence of genetic polymorphisms and bacteria on chronic periodontitis risk. We determined the prevalence of 12 single-nucleotide polymorphisms (SNPs) in immune response candidate genes and 7 bacterial species of potential relevance to periodontitis etiology, in chronic periodontitis patients and non-periodontitis control individuals (N = 385). Using decision tree analysis, we identified the presence of bacterial species Tannerella forsythia, Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and SNPs TNF -857 and IL-1A -889 as discriminators between periodontitis and non-periodontitis. The model reached an accuracy of 80%, sensitivity of 85%, specificity of 73%, and AUC of 73%. This pilot study shows that, on the basis of 3 periodontal pathogens and SNPs, patterns may be recognized to identify patients at risk for periodontitis. Modern bioinformatics tools are valuable in modeling the multifactorial and complex nature of periodontitis.
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Affiliation(s)
- M.L. Laine
- Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, and VU University Amsterdam, Department of Periodontology, The Netherlands
| | - V. Moustakis
- Foundation for Research and Technology – Hellas (FORTH), Institute of Computer Science, Bioinformatics Laboratory, Science and Technology Park of Crete, Heraklion 71110, Greece
- Technical University of Crete, Department of Production Engineering and Management, Chania, Greece
| | - L. Koumakis
- Foundation for Research and Technology – Hellas (FORTH), Institute of Computer Science, Bioinformatics Laboratory, Science and Technology Park of Crete, Heraklion 71110, Greece
| | - G. Potamias
- Foundation for Research and Technology – Hellas (FORTH), Institute of Computer Science, Bioinformatics Laboratory, Science and Technology Park of Crete, Heraklion 71110, Greece
| | - B.G. Loos
- Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, and VU University Amsterdam, Department of Periodontology, The Netherlands
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Loo WTY, Fan CB, Bai LJ, Yue Y, Dou YD, Wang M, Liang H, Cheung MNB, Chow LWC, Li JL, Tian Y, Qing L. Gene polymorphism and protein of human pro- and anti-inflammatory cytokines in Chinese healthy subjects and chronic periodontitis patients. J Transl Med 2012; 10 Suppl 1:S8. [PMID: 23046796 PMCID: PMC3445856 DOI: 10.1186/1479-5876-10-s1-s8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Periodontal disease is thought to arise from the interaction of various factors, including the susceptibility of the host, the presence of pathogenic organisms, and the absence of beneficial species. The genetic factors may play a significant role in the risk of periodontal diseases. Cytokines initiate, mediate and control immune and inflammatory responses. The aim of this study is to compare genotypes and soluble protein of pro and anti-inflammatory cytokines (IL-1α, IL-1β, IL-6, IFN-γ, IL-10, TNF-α and IL-4) in subjects with or free of chronic periodontitis. METHODS A total of 1,290 Chinese subjects were recruited to this clinical trial: 850 periodontally healthy controls and 440 periodontal patients. All subjects were free of systemic diseases. Oral examinations were performed, and the following parameters were recorded for each subject: supragingival/subgingival calculus, gingival recession, bleeding on probing (BOP), probing depth (PD), clinical attachment loss (CAL), gingival recession and tooth mobility. The peripheral blood samples were collected for genetic and enzyme linked immunosorbent assay (ELISA) analysis. Restriction enzymes were used for digestion of amplified fragments of IL-1α, IL-1β, IL-6, IFN-γ, IL-10, TNF-α and IL-4. RESULTS The protein expressions of patient and control samples for IL-1α, IL-1β, IL-6, TNF-α, IFN-γ, IL-10, and IL-4 measured by ELISA confirmed a statistically significant difference (p < 0.001). The digestion of fragments of various genes showed that the pro-inflammatory cytokines IL-1α and TNF-α, and the anti-inflammatory cytokines IL-4 and IL-10 demonstrated a correlation with chronic inflammation in patients (X2: p < 0.001). The remaining genes investigated in patients and healthy subjects (IL-1β, IL-6, IFN-γ and IL-10) did not show any significant difference. CONCLUSIONS The cytokine gene polymorphisms may be used as a marker for periodontitis susceptibility, clinical behaviour and severity. This detection offers early diagnosis and induction of prophylaxis to other family members against disease progression.
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Affiliation(s)
- Wings TY Loo
- UNIMED Medical Institute, Hong Kong SAR
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR
| | - Chang-bin Fan
- Stomatological Hospital of Guangzhou Medical College, Guangzhou, PRC
| | - Lan-jun Bai
- Department of Stomatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, No.32, Section 2,1st Ring Road (West), Chengdu, Sichuan, PRC
| | - Yuan Yue
- State Key Laboratory for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, PRC
| | - Yi-ding Dou
- Jin Hua Dentistry, Chengdu, 610041, Sichuan, PRC
| | - Min Wang
- State Key Laboratory for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, PRC
| | - Hao Liang
- State Key Laboratory for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, PRC
| | | | | | - Jin-le Li
- State Key Laboratory for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, PRC
| | - Ye Tian
- State Key Laboratory for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, PRC
| | - Liu Qing
- UNIMED Medical Institute, Hong Kong SAR
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Houshmand B, Rafiei A, Hajilooi M. Influence of cytotoxic T lymphocyte antigen-4 (CTLA-4) gene polymorphisms in periodontitis. Arch Oral Biol 2012; 57:1218-24. [DOI: 10.1016/j.archoralbio.2012.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 03/04/2012] [Accepted: 03/11/2012] [Indexed: 10/28/2022]
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47
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Kdkhodazadeh M, Hajilooi M, Houshmand B, Khazaei S, Gholami L, Alijani S. Evaluation of PECAM-1 Gene Polymorphism in Patients with Periodontal Disease and Healthy Individuals. ISRN DENTISTRY 2012; 2012:751920. [PMID: 22461993 PMCID: PMC3313571 DOI: 10.5402/2012/751920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 12/25/2011] [Indexed: 11/23/2022]
Abstract
Objective. Our aim in this paper was to investigate the possible genetic association between three Ser563Asn, Leu125Val and Arg670Gly polymorphisms of the PECAM-1 gene and periodontitis. Methods. Genomic DNA was isolated from whole blood of 105 periodontal patient (52 with chronic periodontitis and 53 with aggressive periodontitis) and 101 healthy individuals. Samples were genotyped and analyzed for the three single-nucleotide polymorphisms (SNPs) of PECAM-1 using polymerase chain reaction with sequence-specific primers (PCR-SSPs). Results. A statistically significant difference was found between the genotypic distribution of the Ser563Asn polymorphism in patients with periodontitis compared to controls (P = 0.02). But there were no statistically significant difference between the allele frequencies in the different groups (P = 0.05). The other two polymorphisms did not show a statistically significant difference in their allele and genotype frequencies between the groups. There was no statistically significant difference found for any of the polymorphisms allele and genotype distribution in aggressive and chronic periodontitis either. Conclusions. No significant association was found between the polymorphism tested and the subgroups of periodontitis, further research is still necessary to determine whether this polymorphism can be used as a genetic marker of periodontitis.
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Affiliation(s)
- Mahdi Kdkhodazadeh
- Periodontics Department, Dental School, Shahid Beheshti University of Medical Sciences, Hamadan, Iran
| | - Mehrdad Hajilooi
- Immunology Department, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Behzad Houshmand
- Periodontics Department, Dental School, Shahid Beheshti University of Medical Sciences, Hamadan, Iran
| | - Sara Khazaei
- Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Leila Gholami
- Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sara Alijani
- Dental School, Shahid Beheshti University of Medical Sciences, Hamadan, Iran
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Taba Jr M, Souza SLSD, Mariguela VC. Periodontal disease: a genetic perspective. Braz Oral Res 2012; 26 Suppl 1:32-8. [DOI: 10.1590/s1806-83242012000700006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 11/16/2011] [Indexed: 11/22/2022] Open
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Scarel-Caminaga RM, Kim YJ, Viana AC, Curtis KMC, Corbi SCT, Sogumo PM, Orrico SRP, Cirelli JA. Haplotypes in the interleukin 8 gene and their association with chronic periodontitis susceptibility. Biochem Genet 2010; 49:292-302. [PMID: 21188496 DOI: 10.1007/s10528-010-9407-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Accepted: 09/28/2010] [Indexed: 12/19/2022]
Abstract
Interleukin-8 (IL-8), which is responsible for the migration and activation of neutrophils, is an important inflammatory mediator involved in the initiation and amplification of acute inflammatory reactions and chronic inflammatory processes. IL-8 plays an important role in periodontitis, an inflammatory disease characterized by the loss of connective tissue and alveolar bone. The aim of this study was to investigate whether the SNPs rs2227307 (+396) and rs2227306 (+781), and the haplotypes they formed together with the previously investigated rs4073 (-251), were associated with chronic periodontitis susceptibility. Clinical periodontal exams were performed and DNA samples were collected from 493 individuals (223 with periodontitis and 270 controls). Associations between SNPs, haplotypes, and subject phenotypes were analyzed using the χ(2) test followed by multivariate logistic regression modeling. We conclude that the +396TT genotype and the haplotypes ATC/TTC and AGT/TGC were significantly associated with chronic periodontitis susceptibility in Brazilians.
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Affiliation(s)
- Raquel M Scarel-Caminaga
- Department of Morphology, School of Dentistry at Araraquara, UNESP-São Paulo State University, SP, Brazil.
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Brinkmann O, Zhang L, Giannobile WV, Wong DT. Salivary biomarkers for periodontal disease diagnostics. ACTA ACUST UNITED AC 2010; 5:25-35. [DOI: 10.1517/17530059.2011.542144] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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